海洋工程装备与技术

海洋工程装备与技术 ›› 2016, Vol. 3 ›› Issue (1): 12-19.

• 海洋油气勘探开发技术与装备 • 上一篇    下一篇

海底管道裂纹损伤评估及软件开发

李丽玮, 郝林, 周巍伟, 裴晓梅, 曹静   

  1. 中海油研究总院;中海油安全技术服务有限公司;
  • 收稿日期:2015-12-24 出版日期:2016-02-25 发布日期:2017-08-12
  • 作者简介:李丽玮(1986—)，女，硕士研究生，主要从事海底管道和立管结构方面的研究。
  • 基金资助:
     

Evaluation on Submarine Pipeline with Crack Damage and Software Development

LI Li-wei, HAO Lin, ZHOU Wei-wei, PEI Xiao-mei, CAO Jing   

  1. 1.CNOOC Research Institute, Beijing 100028, China; 2.CNOOC Safety Technology Services Co., Ltd., Tianjin 300452, China
  • Received:2015-12-24 Online:2016-02-25 Published:2017-08-12
  • Supported by:
     

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摘要： 海底管道是海上油气资源集输、外输的主要手段。对于建成的海底管道,由于投产后输送介质的变化、腐蚀、渔业捕捞、过往船只拖/抛锚等活动,使管道局部产生应力集中现象,发生裂纹并导致裂纹扩展,从而带来油气停产等重大经济损失。因此对海底管道裂纹损伤强度的评估是非常重要的。介绍了通用的结构失效评估图(FAD)技术,详细阐述了规范BS7910—1999裂纹损伤强度评估二级评定方法的运用,并依据规范编写了海底管道裂纹损伤强度评估系统。采用该评估系统,可快速评价已发生裂纹是否能够继续满足强度要求。

Abstract: Submarine pipeline is the main tool for the transportation and exporting of offshore oil and gas resource. The working pipeline would suffer stress concentration and occurrence of crack, which may lead to crack propagation, due to the change of transmission medium, corrosion, fishing, dragging anchors and other activities. It is very important to evaluate the strength of the submarine pipeline with crack damage. General structure failure assessment diagram (FAD) technology and application of level 2 evaluation method in the specification BS7910—1999 are introduced. An evaluation system is developed according to BS7910—1999. Case study shows that this system can be used to quickly assess the strength of pipeline with crack damage.

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